Principal Architect - Device Driver

About the Company

Hexnode is a global leader in Unified Endpoint Management (UEM), trusted by over 100 countries and managing millions of devices worldwide. With a rapid pace of innovation, we have established ourselves as a dominant force across Apple, Windows, Android, macOS, Linux, and tvOS.

Why Hexnode?

Hexnode is a rare combination of global scale, product excellence, and startup-level velocity. We operate in a mission-critical category—supporting organizations that rely on secure, reliable device management every single day. Joining Hexnode means stepping into a company in hyper-growth mode.

About the Role

We are seeking a Principle Architect – Device Driver for our Windows Kernel Development team to architect, develop, and debug low-level OS components and device drivers. This role requires deep technical expertise in Windows internals, advanced debugging, and the ability to mentor staff while collaborating across cross-functional engineering teams.

You will manage a dedicated team of 5 to 6 specialized engineers while remaining fundamentally hands-on—architecting, reviewing, and implementing core endpoint security, virtualization, and file system subsystems. If you have a profound mastery of Windows internals, a history of scaling engineering talent, and experience shipping production-grade security or UEM agents, we want you to lead this mission.

Responsibilities

• Lead and guide engineering teams in the design, development, and optimization of kernel-mode drivers (KMDF, UMDF, WDM) and core system components.
• Design low-level system interception mechanisms, security hooks, and isolation layers critical for Enterprise-grade Unified Endpoint Management (UEM).
• Write and optimize highly performant, thread-safe C/C++ code.
• Function as the final escalation point for complex system failures, utilizing WinDbg for live/post-mortem crash dump analysis (BSOD troubleshooting) and memory leak detection.
• Mentor, recruit, and manage the performance of junior and senior kernel developers.
• Conduct rigorous code reviews and establish secure kernel development lifecycle (SDLC) standards.
• Oversee the Windows Hardware Compatibility Program (HLK/VHLK) workflows, managing driver attestation signing and WHCP releases via the Microsoft Partner Center.
• Partner with architecture, QA, product, and backend teams to ensure seamless endpoint agent integration and product delivery.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Information Security, Engineering, or a related discipline.

Required Skills

• 10+ years of hardcore, hands-on experience in Windows Systems/Kernel Development, with at least 2+ years in a technical leadership or management capacity leading 5+ engineers.
• Deep, practical experience building and debugging Windows File System Minifilter drivers, with an authoritative grasp of the Windows I/O manager, Filter Manager, and caching mechanisms.
• Master-level understanding of Windows OS internals (Process/Thread management, Memory Management, Object Manager, Synchronisation primitives, and Security Access Control lists).
• Comprehensive experience working with KMDF, UMDF, legacy WDM models, and advanced kernel-mode debugging tools (WinDbg).
• Expert-level proficiency in C and C++.
• Exceptional communication and people skills, with a proven ability to bridge the gap between deep-tech engineering and high-level product strategy

Hexnode is an Equal Opportunity Employer. We welcome and encourage candidates of all backgrounds, identities, and experiences to apply.